[ios] Use symbol_level=1 in all iOS debug builds

R=justincohen@chromium.org

Bug: 834527
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I8707404256448ffe8f60037785d9b0ee20d08fc6
Reviewed-on: https://chromium-review.googlesource.com/1029205
Commit-Queue: Sergey Berezin <sergeyberezin@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553884}

ios/build/bots/chromium.fyi/ios-simulator-cronet.json

@@ -17,6 +17,7 @@
     "use_crash_key_stubs=true",
     "is_cronet_build=true",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_platform_icu_alternatives=true"

ios/build/bots/chromium.fyi/ios-simulator.json

@@ -8,6 +8,7 @@
     "goma_dir=\"$(goma_dir)\"",
     "is_component_build=false",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_goma=true"

ios/build/bots/chromium.fyi/ios-webview.json

@@ -8,6 +8,7 @@
     "ios_deployment_target=\"9.0\"",
     "is_component_build=false",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_goma=true"

ios/build/bots/chromium.mac/ios-simulator-cronet.json

@@ -20,6 +20,7 @@
     "use_crash_key_stubs=true",
     "is_cronet_build=true",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_platform_icu_alternatives=true"

ios/build/bots/chromium.mac/ios-simulator-full-configs.json

@@ -9,6 +9,7 @@
     "goma_dir=\"$(goma_dir)\"",
     "is_component_build=false",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_goma=true"

ios/build/bots/chromium.mac/ios-simulator-xcode-clang.json

@@ -11,6 +11,7 @@
     "ios_enable_code_signing=false",
     "is_component_build=false",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_goma=true",

ios/build/bots/chromium.webrtc.fyi/ios-simulator.json

@@ -9,6 +9,7 @@
     "ios_enable_code_signing=false",
     "is_component_build=false",
     "is_debug=true",
+    "symbol_level=1",
     "target_cpu=\"x64\"",
     "target_os=\"ios\"",
     "use_goma=true"